Mechanical movement for washing-machines.



F. H. BERGWIAN. MECHANICAL MOVEMENT roR WASHING MACHINES.

APPLICATION FILED FEB. 9. I916;

Patented Dec. 112, 1916.

2 SHEETSSHEET I.

F. H. BERGMAN.

MECHANICAL MOVEMENT FOR WASHING MACHINES.

APPLICATION FILED FEB. 9. l9l6.

SHEET 2.

2 SHEETS- M55 3 .MZM 11 y h MECHANICAL MOVEMENT FOR WASHING-MACHINES.

tenants..-

Application filed February a, me. aeriaino. 77,160. Y

. To all whom it may concern ttd dtt

iitt

Be it known that it, FREDERICK HENRY BEnoMAN, a citizen of the United States, re-

siding at Newton, in the county of Jasper and State of Iowa, have invented certain new and useful Improvements in Mechanical Movements for Washing-litlachines, of which the following is the specification.

This invention relates to gearing for washing machines and particularly to a gearing whereby a combined and reclprocatory and rotary motion is given'to the pounder head of such .machines in combination with a periodic reversal of the latter motion.

It is well known that the washing action of pounder washing machines consists in forcing water and suds back and forth through the wash by alternating pressing and releasing them. This it have discovered is materially improved if the pounder be rotated so as to act upon different regions of the clothes and prevent them from sticking against the pounder'and be still further improved it the pounder be periodically re versed in itsdirection of rotation.

The object of this invention therefore, is to provide simple, economical and eiiicient means torreciprocating, rotating and periodically reversing the ponnder head of a washing machine or the like.

Other objects and advantages of the invention will appear as the description to follow proceeds.

In the drawings: Figure 1 is an elevation of a washing machine constructed according to my invention. Fig. 2 is a plan view thereof. Fig. 3 is a detailed cross sectional view of a portion thereof. Fig. 4 is a plan view, partly in cross section of the reversing mechanism. Fig. 5 is a similar view showing parts in the pawl .portion of the operating mechanism. Fig. ti is a sectional view of the reversing pawl and associated mechanism.

Fig. 7 is a perspective view of the pawl. Fig. 8 is an elevation of a portion of the crown ratchet forming a part of the operat ing mechanism.

ltn the drawings it represents, in general, a washing machine tub provided with a hinged cover, these parts being old and well known. Mounted upon a hinged cover '2 is a plate 3 having a bushing t projecting into an aperture. through the cover-and a double standard 5, the piate i being secured to top of cover by bolts such as ti. ltevolubly mounted in the bushing -t is the extended hub Z Specification of Letters Patent.

Patented lD ec. imiitdllfi.

of a crown ratchet 8 having thereon one or. more, in this instance one'large rounded tooth 9, occupying the space occupied by two normal teeth. The hub of the crown ratchet 8 is provided with a square aperture in which is mounted a square shaft 10 carrying at its lower end a pounder head 11. Firmly bolted upon the plate 3 is a casing or cover 12 extending part way around the crown ratchet as shown in Fig. 4 and having upon its upper face a cup shaped depression terminating in an angular shoulder 13, seated against a cutaway portion of the hub 8 of the crown ratchet, thus preventing the crown ratchet frombeing raised during the reciprocation of the shaft 10 as hereinafter explained. The cover plate 12 is provided with a segmental extension 14 as shown in Fig. 2, to cover and protect the operating gear mechanism to be described. Upon the cover plate 12 is a closed tubular extension 15, surrounding the upper part of the shaft 10, which shaft is provided with a rounded upper end 16, projecting through the top of extension 15 and provided outside of said extension with a cotter pin 17.

Partially mounted in the double standard 5 is a casting 19 provided with a rigid arm .21 to form a bell crank lever and with a bandle 20. The arm 21 is widened and forked at its end to permit the upper end of the shaft 10 to pass between the branches of the fork and at its end is pivotally connected with links 23 which are in turn connected with the member 15. it will be seen that oscillation of lever will result in vertical reciprocation of shaft 10. iivotally connected with the lower end of the casting 19 is a bent link 24, which is forked at its outer end and is pivotally engaged with a pin 25 vertically mounted in a segmental upright flange 2t integral with a horizontal plate 27, terminating in a collar 28,,surrounding the bushing 4 ot the plate 3. The tiange 26 is extended in both directions as indicated, to over lap at both ends the vertical portion of the casing 12 and so completely inclose the crown ratchet 8. Pivotally mounted upon the pin 29 in the tiange 28 is a pawl 30, having double blades 31 and 32.

llt will be obvious that operation ot the handle 20 will serve to reciprocate link 2t and thus oscillate the tiange 26 about the shaft it) and by means of the pawl cause the intermittent rotation of this shatt through the agency of the crown ratchet 8.

The crown ratchet 8 will continue to be turned in the same direction until the large tooth 9 thereupon comes up against the outer rounded face of thepawl 30.' The n'e'xt return stroke of the pawl 30 will cause ithe outer rounded face of said pawl to ride :f'iip upon the large tooth 9, which is made rounded as shown, throwing said pawl over "its" pivot to the outer side and reversing its action upon the crown ratchet 8, so that the direction of rotation of the crown ratchet 81- will be reversed until such time as the large tooth 9 again impinges the tooth 9,

' whereupon another reversal will occur and soon.

In'operation, the handle is oscillated '\\*hich serves to vertically reciprocate the shaft 10 and therefore cause the pou-nder to act upon the clothes in the wash tub. At

the same time the shaft 10 Will be rotated and periodicallyreversed through the agency'ofthe crown ratchet 8. The spring 18 serves to hold the parts at one extreme of their stroke and increases the pounding action upon the clothes by adding to the force by which the pounder is'dropped' each time.

1 I claim:

1-.' In a gearing for washing machines or the like, a support, a reciprocatory shaft in said support, means to rotate said shaft during the reciprocation including means to "periodically reverse the direction of its rotation after it has rotated in one direction during a plurality of reciprocations.

2. In a gearing for washing machines or the like, a'support, a reciprocat'ory shaft in said support, means to reciprocate said shaft, connections from said means for interin said standard, a. reciprocatory shaft in said hinged member, connections between said lever and said reciprocatory shaft for operating the latter both in longitudinal and rotary directions including resilient.

means for holding the shaft in extended position.

4. In apparatus of the class described, a support, a member hinged to the support, a reciprocatory shaft in said member, a ratchet slidably but non-rotatably mounted on to said shaft, means including a bell crank lever and a li'nk for reciprocating the shaft, means operated by said bell crank lever for rotating said ratchet, including a reversible pawl.

In an apparatus of the class described, a support, a member hinged to the support, a reciprocatory shaft in said member, a ratchet slidably but non-rotatably mounted on to said shaft, lever operated means for operating said shaft, connections from said lever operated means for rotating said ratchet including a two edged pawl and a projection on said ratchet to periodically upset/said pawl and thereby reverse the direction of rotation of theratchet.

6. In apparatus of the class described, a support, a memberhinged to the support, a reeiprocatory shaft on the hinged member, a crown ratchet surrounding the shaft, a pawl operating upon said crown ratchet to rotate the ,reciprocatory shaft, means for operating said pawl, a casing surrounding a portion of said ratchet, and a guard connected to said pawl and adapted to complete the inclosure of said ratchet to protect the same, substantially as described.

In witness whereof, I hereunto subscribe my name to this specification in the presence of two witnesses.

FREDERICK HENRY BERGMAN.

Witnesses:

HENRY C. Konr, V. H. MORGAN. 

